131831076225 has 24 divisors (see below), whose sum is σ = 218312907040. Its totient is φ = 70196296320.

The previous prime is 131831076217. The next prime is 131831076271. The reversal of 131831076225 is 522670138131.

It is a happy number.

It is not a de Polignac number, because 131831076225 - 2³ = 131831076217 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1373404 + ... + 1466253.

Almost surely, 2^131831076225 is an apocalyptic number.

131831076225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

131831076225 is a deficient number, since it is larger than the sum of its proper divisors (86481830815).

131831076225 is a wasteful number, since it uses less digits than its factorization.

131831076225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2840289 (or 2840284 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 39.

The spelling of 131831076225 in words is "one hundred thirty-one billion, eight hundred thirty-one million, seventy-six thousand, two hundred twenty-five".